If you want to play old DOS era games then you can't go wrong using
DBGL. DBGL or DosBox Game Launcher is a very simple, but powerful, cross-platform DosBox frontend. All you need to do is to mount the directory where the game is saved. Once you have defined the proper directories, just click on play and you're good to go. The best thing about this is that you really don't have to tweak and fiddle with the CPU, frameskip, and other settings. Although, you can change everything, if ever you need to tweak these options.
DBGL also offer pre-made packages of full version games (like Elder Scrolls: Arena and Daggerfall) to Shareware games (like Doom and Duke Nukem). To use packages just download the package and associate it with DBGL.
Playing DOS games have never been this easy. If you still have your old copy of DOS games, just use this app, no need to re-purchase classic games from GOG.
